<template>
  <div class="todo-footer">
    <label>
      <input type="checkbox" v-model="isAllCheck"/>
    </label>
    <span>
          <span>已完成{{completeCount}}</span> / 全部{{totalCount}}
        </span>
    <button class="btn btn-danger" v-show="completeCount" @click="clearAllCompleted">清除已完成任务</button>
  </div>
</template>

<script>
import {mapGetters,mapActions} from 'vuex'

export default {
  name: "TodoFooter",
  props:{
    /*todos:Array,
    deleteCompleteTodos:Function,
    selectAllTodos:Function*/
  },
  computed:{
    ...mapGetters(['totalCount','completeCount','isAllSelected']),
    isAllCheck:{
      get(){
        return this.isAllSelected
      },
      set(isCheck){ /*更新状态时被调用*/
        // this.selectAllTodos(value);
        this.$store.dispatch('selectAllTodos',isCheck)
      }
    }
  },
  methods:{
    ...mapActions(['clearAllCompleted'])
  }
}
</script>

<style scoped>

/*footer*/
.todo-footer {
  height: 40px;
  line-height: 40px;
  padding-left: 6px;
  margin-top: 5px;
}

.todo-footer label {
  display: inline-block;
  margin-right: 20px;
  cursor: pointer;
}

.todo-footer label input {
  position: relative;
  top: -1px;
  vertical-align: middle;
  margin-right: 5px;
}

.todo-footer button {
  float: right;
  margin-top: 5px;
}

</style>
